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Solnce55 [7]
3 years ago
9

2 times what equals 36

Mathematics
1 answer:
yarga [219]3 years ago
7 0
2 times 18 equals 36... Did I do a good job answering your question?? If so, brainliest, please. :)
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The time spent to travel a certain distance varies inversely as a car's speed. If it takes 5½ hours to travel a certain distance
Licemer1 [7]

Answer:

6.6h

Step-by-step explanation:

  • So it takes 5.5 hours going at a speed of 60 miles per hour, multiply these two and we get a distance of 330 miles
  • Use this distance to find the time if speed is 50 miles per hour, so time is derived by dividing the distance by the speed
  • 330 miles divide by 50 miles per hour gives 6.6 hours
5 0
3 years ago
If a physician order is 25% dextrose 1000 mL and all you have is 70% dextrose 1000 mL and 5% dextrose how much 70% dextrose will
miskamm [114]

Answer:

The answer is below

Step-by-step explanation:

Since 1000ml Of Dextrose 25% is needed to be produced from Dextrose 70%. Let us assume that x ml of Dextrose 70% is mixed with a Dextrose 5% to get 1000 ml of Dextrose 25%. Hence:

The amount of Dextrose 5% = 1000 ml - x ml = 1000 - x

25% of 1000 ml = 70% of x + 5% of (1000 - x)

25000 = 70x + 5000 - 5x

Simplifying gives:

65x = 25000 - 5000

65x = 20000

x = 308 ml

Therefore 308 ml of Dextrose 70% was mixed with 692 ml of Dextrose 5% to produce 1000 ml of Dextrose 25%.

7 0
3 years ago
3x - 3y = -3<br>2x - y = -5​
Korolek [52]

For this case we must solve the following system of equations:

3x-3y = -3\\2x-y = -5

To solve we follow the steps below:

We multiply the second equation by -3:

-6x + 3y = 15

Thus, we have the equivalent system:

3x-3y = -3\\-6x + 3y = 15

We add the equations:

3x-6x-3y + 3y = -3 + 15\\-3x = -3 + 15\\-3x = 12\\x = \frac {12} {- 3}\\x = -4

We look for the value of the variable "y":

2 (-4) -y = -5\\-8-y = -5\\-y = -5 + 8\\-y = 3\\y = -3

Thus, the solution of the system is given by:

(x, y): (- 4, -3)

Answer:

(x, y): (- 4, -3)

4 0
3 years ago
A wheel turns through 200 revolutions per minute. How fast does it turn in radians per second?
lana [24]

Answer:

In one second it turns 200 / 60 = 3 1/3 revolutions. Since one revolution is 360°, the answer is 6 2/3 π radians.

6 0
3 years ago
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What is the solution for line one: y=-2x+1 line two: -2x-3
Oliga [24]

The slope-intercept form is

y=mx+b

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y=mx+b

Find the values of

m

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b

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y

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m

x

+

b

.

\m

=

2

b

=

−

3

The slope of the line is the value of

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Any line can be graphed using two points. Select two

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values, and plug them into the equation to find the corresponding

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values.

Tap for fewer steps...

Find the x-intercept.

Tap for more steps...

x-intercept(s):

(

3

2

,

0

)

Find the y-intercept.

Tap for more steps...

y-intercept(s):

(

0

,

−

3

)

Create a table of the

x

and

y

values.

x

y

0

−

3

3

2

0

m

=

2

b

=

−

3

The slope of the line is the value of

m

, and the y-intercept is the value of

b

.

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2

y-intercept:

(

0

,

−

3

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Any line can be graphed using two points. Select two

x

values, and plug them into the equation to find the corresponding

y

values.

Tap for fewer steps...

Find the x-intercept.

Tap for more steps...

x-intercept(s):

(

3

2

,

0

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Tap for more steps...

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(

0

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x

and

y

values.

x

y

0

−

3

3

2

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I'm so sorry it layed out like this my computer is being st00pid

6 0
2 years ago
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